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Everything posted by kevin gilmore
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looks fine to me, the oven door is no more than 2 inches in front of the cabinet faces. The previous oven which was a built in was probably 1 inch in front of the cabinet face all the heat goes up the back splash and under the feet of the oven out the front. favorite place of the dogs when the oven is on.
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yep, and requires 60 amp circuit 220v
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Before I got the Wolf oven/cooktop, I used a single burner cheap thing. Worked great. make sure you try a magnet on the pans you plan on using, some kinds of stainless pans are non magnetic and will not work. also they use 80% of the power of a typical kitchen circuit, so you can't use most other things at the same time
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sounds like a shorted zener also easy to fix
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pretty sure i found the right source file, will have to look later i got to get this crap under control somehow edit: fixed board layout for future use if any kgsshvpssicfetsingle2newstretch2 - CADCAM.ZIP
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edit: found the output file, but no source file. (or I named it something stupid) but from the dates, no matching source file
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biggest problem with this is that it can't handle anything like 1kv with the parts shown you can replace the lnd150 with a 10m90s or ixta01n100d cascode, then also use a ixta01n100d as the current source device. will test later
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if you are going thru all that effort (and its a good idea) might as well add some hall effect devices on the power rails to monitor the bias current. something I did in the uberamp quite a while ago and that made the bias super stable, set it to what you want and it works. then if you want to get super silly, add dynamic bias
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Bought the lg 65 oled, will be here next week
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other crazy idea for dc to dc converter, using new products one of these the emitter http://www.mouser.com/ProductDetail/VCC/VAOL-5EWY4/?qs=%2fha2pyFaduhNUPpEGi%2fTWzIKry8%2bJh8FybMNufznF7kCONNnK6Yvsg%3d%3d and one of these as the receiver http://www.mouser.com/ProductDetail/Panasonic/AM-5904CAR/?qs=%2fha2pyFadugs7g8VUByJ5oE9GbMGgLjolVm%2fi%2bg9ILY8mwYKK3C03A%3d%3d
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I just realized that my sharp 65 inch will be 10 years old in august. And there are visible streaking and non-uniformities. So its time to replace it.
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really think you should add the t2 current source modified with 2sc4686 and cascade current source to drive the led reference, that still synthesizes the best of everything
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I will have to look that later, but I took the tube piece from the GG design edit: this is the same as the T2, so it is what I wanted.
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the BH has the extra power supply on the amp boards that takes power from the negative rail, so hence the increased current. all the rest of the amps should have roughly the same current in both power supplies
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magni, magni2, magni2uber, jotunheim,liquid carbon, and the new headroom amplifier. None of these things have heatsinks of any kind on the output transistors and thermal stability is questionable, and then they overheat, and long term reliability is non-existant. there is a reason why you are supposed to put the thermal compensation diodes as close as possible to the output devices. Same problem with the singlepower squarewave but a bit more dramatic.
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goldenreference low voltage power supply
kevin gilmore replied to kevin gilmore's topic in Do It Yourself
attach the pass transistors to short wires its done a lot more often than you think on big expensive instruments -
it could certainly be balanced susy. biggest question is what to use for output transistors
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STAX SR-M323A transformer re-wiring and balanced input
kevin gilmore replied to Marin M's topic in Headphone Amplification
you are going to need to be able to fix the blue and orange wires and attach them back to the circuit board -
I have never listened to the yggy, and likely never will. No DSD! The amps are all designs from the 70's and sound like it too. hard to tell which is worse, jotunheim or liquid carbon. Both have the same failure modes.
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I don't stoop that low either. I have 4 pieces of schiit. The joutunheim broke me. That's not a piece of schiit, its a piece of shit. you can't leave it on for more than about 8 hours, it starts to cook.
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I can certainly do a new board, it would have to be mostly surface mount, and different output fets. I can definitely see that running the board without the main electrolytics would effect the low frequencies
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So balanced electrostats have a linear response with respect to the amount of movement of the diaphragm vs voltage. That is because the dual non-linearities of each stator balance out the position of the diaphragm with respect to voltage. single ended electrostatics do not do this. So higher voltage swings result in more distortion than lower voltage swings. pretty much an exponential curve. throwing piles of dsp at the problem likely only fixes some of the problems, and then is subject to temperature and humidity of the room. The only known version of this that was ever successful was the beveridge loudspeaker. And the acoustic lens allowed for very small movements in the diaphragm to generate substantial sound levels. Which is what happens when the diaphragm is 6 feet x 1 foot. this is going to be epic fail.
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stax mafia circuit boards see updated links on page 5
kevin gilmore replied to kevin gilmore's topic in Do It Yourself
kgsshvcarbonv5.pdf goldenreferencehvsic.PDF megatron.PDF added megatron schematic -
schematics t2schem.PDF t2schempower.PDF